Home / 133,090.42-183,656.93-72,649.06

Finding the Fourth Proportional to 133,090.42, 183,656.93 and 72,649.06

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Solution

The fourth proportional to 133,090.42, 183,656.93 and 72,649.06 is: 100,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.42 : 183,656.93 = 72,649.06 : x
  2. Step 2: Convert to fraction form
    133,090.42/183,656.93 = 72,649.06/x
  3. Step 3: Cross multiply
    133,090.42x = 183,656.93 × 72,649.06
  4. Step 4: Simplify right side
    133,090.42x = 13,342,503,326.99
  5. Step 5: Solve for x
    x = 13,342,503,326.99/133,090.42
  6. Step 6: Final answer
    x = 100,251.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.